Jack



April 10, 1928. W. E. RAWLINGS JACK I Filed Jan.26. 1927 INVENTORm'r-rnnma-Y FIGURE 15 v Patented Apr. 10,

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WILLIAM E. RAWLI NGS, 0F NEARSAN JOSE, CALIFORNIA.

JACK.

Application filed January 26 1927. Serial No. 163,753. 7

, This invention relates particularly to a device for raising a discplow or s1m1lar mplement from the ground whereby to permit rotation ofits axle and sharpening of the discs.v

It 1s one object of the invention to provide a device for the characterindicated'that may.

v portion of the device, greatly enlarged.

Referring'more particularly to the drawing, I show at 1 a leverpivotally connected at one end as 2 to a plate? The other end isprovidedwith a handle 4, and spaced back 5''from the handle 4 is a leg 5pivotally conneoted to the lever as at 6 and to a foot plate 7 as at 8,the two pivots 6 and 8'consisting of hinges arranged to operate inopposite directions to each other.

eda block 9 arranged; to lie in a horizontal plane when the leg 5 is ina vertical position and having an annular socket formed in its uppersurface as at 10. I v

The reference 11 indicates a portion of the aXle of a disc, and uponwhich are mounted the discs as 12 separated by spacer sleeves -as 13 inthe usual manner. These sleeves are usually more or less rough on theirouter 4o surfaces andnot adapted to rotate smoothly in a bearing,therefore I provide a circular bearing member as 1 4 provided with hubsas 15, the whole being formed" in two parts as shown and bored totightly engage the secured in place in any elevation of the device Onthe upper side of the lever 1 is mountsleeve 13. When in position thismember is .When the discs have become-dulled fuse f one of these jacksis 'placedfbetweenf two discs near each endof the implement,"the?5o."vbearingmembers 14,15, 16'having previously been clamped in position onthe sleeve 13,- j g and a quantity of lubricatingjgrease having:

been placed in the socket-10. Upon raising the lever 1 the. said socketengages the part l land the leg assumes'avertical position 7 therebysupporting the axle .11 in a raised position and lifting the discs freefrom-the it ground. This having been accomplished the; T axle and all ofthe discs thereon may be rotated freely in any sult'able manner, per Imitting thediscs to be ground 'to a sharp: 1

edge withoutremoving-the same from the axle l while I have hereinshownand described :but one specific. form or my inventio n-,"- changesin form, constructlon and method of assembly and'operation maybe madewith. in the/scope of the appended claims.

I claim: I

1. A jack for a revoluble axle comprising a lever havinga leg mountedthereonadjzt centone end and having a bearing formed thereinbetween. theleg and the otherend, y and a bearing member mountable upon the V axleto rotate therewith andjournaled'in I Y Y said bearing.

- 2. A jack for a revoluble axle comprising a lever having a platepivotally mounted on one end thereof at right angles to theplane ofmovement of 'the'lever, a leg plvotally mounted thereon adjacent theother end and movable in the plane of movement of the 3 lever, the saidlever having a bearing formedlss therein between the leg and plate,abearing member mountable uponanaxle to rotate therewith and journaledin said bearing, and a plate pivotally mounted upon the free I end ofthe leg in a, plane-parallel with the plane of said first-mentionedplate. I v

WILLIAM E. nnwmhes It. is'to be understood, ofqcoursefthat

